From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jonatan Schlag <jonatan.schlag@ipfire.org>
To: network@lists.ipfire.org
Subject: [PATCH v3 2/5] util: add new function copy
Date: Mon, 17 Jul 2017 21:05:15 +0200
Message-ID: <1500318318-18852-2-git-send-email-jonatan.schlag@ipfire.org>
In-Reply-To: <1500318318-18852-1-git-send-email-jonatan.schlag@ipfire.org>
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Just one short note, I could also insted of removing the destintaion if she e=
xists,
allow fwrite to overired files. I did not do this because it would first mayb=
e break code
when the function fwrite is used. Second it is easier to remove the destintai=
on and
so allow fwrite writing the content to a plain file, then changing the functi=
on so that fwrite override files.
It is easy to remove a file bevore but appending to a file with a function th=
at overried files is not possible.
So I think it is the best to keep this feature of fwrite and when somebody wa=
nts to override a file he has to remove it before.

Signed-off-by: Jonatan Schlag <jonatan.schlag(a)ipfire.org>
---
 src/functions/functions.util | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/functions/functions.util b/src/functions/functions.util
index dd223f9..efcdfb3 100644
--- a/src/functions/functions.util
+++ b/src/functions/functions.util
@@ -761,3 +761,29 @@ hex2dec() {
 dec2hex() {
 	printf "%02x\n" "${1}"
 }
+
+copy() {
+	# This function just copy config files
+	assert [ $# -eq 2 ]
+	local src=3D${1}
+	local dst=3D${2}
+
+	# Wo do the decleration and the initialisation in two lines to get the retu=
rn code of fread
+	local data
+	data=3D$(fread "${src}")
+	if [ ! $? -eq 0 ]; then
+		log ERROR "Could not read data from ${src}"
+		return ${EXIT_ERROR}
+	fi
+
+	# If the file exist we will overwrite it
+	# fwrite would just append the contentet to the end of the file
+	if [ -f ${dst} ]; then
+		rm -f ${dst}
+	fi
+
+	if ! fwrite "${dst}" "${data}"; then
+		log ERROR "Could not write data to ${dst}"
+		return ${EXIT_ERROR}
+	fi
+}
--=20
2.6.3


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